Acute Effects of Inspiratory Muscle Load on Diaphragmatic Recovery in Athletes
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-35
SponsorSierra Varona SL
About this trial
This randomized controlled trial investigates the acute effects of inspiratory muscle warm-up and fatigue on diaphragmatic function in professional basketball players. Using ultrasound imaging and maximal inspiratory pressure (PIM) assessment, the study evaluates changes in diaphragmatic thickness and respiratory strength before and after specific inspiratory muscle loading protocols. Findings aim to clarify the short-term impact of these interventions on diaphragmatic recovery capacity, with potential implications for respiratory training, performance enhancement, and injury prevention strategies in elite athletic populations.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Male and female professional basketball players aged between 18 and 35 years.
Holding a valid federation license at the autonomous or higher competitive level.
A minimum of 3 consecutive seasons of competition in official FEB, FIBA, or equivalent regional leagues.
Regular training frequency of ≥4 sessions per week over the past 6 months.
Disqualifiers
History of chronic respiratory, neuromuscular, or cardiovascular disease.
Musculoskeletal injury limiting inspiratory effort or physical participation (current or within the past three months).
Previous thoracic or abdominal surgery.
Current smokers.
Trial design
Design model
Parallel
Treatments tested in this trial
Inspiratory muscle fatigue group
DeviceThe subjects will perform deep inspirations against a threshold device with varying resistances
Inspiratory muscle warm-up group
DeviceThe subjects will perform deep inspirations against a threshold device with varying resistances
Treatment groups
38 Participants
are divided into 2 treatment groupsGroup A: Inspiratory muscle fatigue groupExperimental treatment 1 intervention
Group B: Inspiratory muscle warm-up groupActive comparator 1 intervention
Trial outcomes
Primary outcomes
1
Maximal inspiratory pressure
It will be assessed using a Breathare MIP/MEP® (GH Innotek Co., Ltd., Busan, Republic of Korea).The Breathare MIP/MEP® is likely a respiratory pressure meter or manometer designed for measuring respiratory muscle strength. It typically includes a mouthpiece connected to a pressure sensor, and the device measures the force or pressure generated during respiratory maneuvers. The person will be instructed to take a maximal deep breath in, and then exhale to residual volume. After that, they will be asked to inhale forcefully against the resistance provided by the Breathare MIP/MEP®. This measures the strength of the inspiratory muscles. The measures will be expressed in cmH2O.
Time frame
Immediately before intervention, immediately after intervention, 15 minutes post intervention and 30 minutes post interventionSecondary outcomes
1
Diaphragmatic thickness and thickening fraction
The linear array probe with a frequency of 3.0-10 megahertz (MHz) is placed perpendicularly to chest wall close to the mid-axillary line which is between the 8th and 10th intercostal space. The thickness of diaphragm is measured at the end of expiration and maximum inspiration for three times and the average values were recorded. The measures will be expressed in centimeters.
Time frame
Immediately before intervention, immediately after intervention, 15 minutes post intervention and 30 minutes post interventionLocations
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Sierra Varona SL
Lead sponsor
Universidad Francisco de Vitoria
Collaborator
Source ClinicalTrials.gov
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